Results 41 to 50 of about 2,319,231 (271)

Site Density Governs Switching Reactivity Regimes During Aerobic C─H Oxidation in Mn Single‐Atom Photocatalysts

open access: yesAngewandte Chemie, EarlyView.
Increasing the density of isolated manganese (Mn) atoms in carbon nitride (CNx) photocatalysts does not continuously improve performance. Instead, beyond a critical loading, the polymer support reorganizes, altering charge‐carrier dynamics and oxygen activation while preserving atomic dispersion.
Viktoria Velichko   +14 more
wiley   +2 more sources

On the Independent Double Roman Domination in Graphs [PDF]

open access: yesBulletin of the Iranian Mathematical Society, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Doost Ali Mojdeh, Zhila Mansouri
openaire   +2 more sources

The Restrained Double Roman Domination and Graph Operations

open access: yesApplied Mathematics and Computation, 2023
Let $G=(V(G),E(G))$ be a simple graph. A restrained double Roman dominating function (RDRD-function) of $G$ is a function $f: V(G) \rightarrow \{0,1,2,3\}$ satisfying the following properties: if $f(v)=0$, then the vertex $v$ has at least two neighbours assigned 2 under $f$ or one neighbour $u$ with $f(u)=3$; and if $f(v)=1$, then the vertex $v$ must ...
Zhipeng Gao, Changqing Xi, Jun Yue
openaire   +4 more sources

Anarchism and non-domination [PDF]

open access: yes, 2019
In this article we recover the classical anarchist deployment of republican tropes of non-domination, tyranny and slavery, to expose the conservative limits of the contemporary neo-Roman republican revival. For the anarchists, the modern nation state and
WAL Prichard (21872402)   +1 more
core   +6 more sources

Molecular Basis of NPY Recognition and Ligand Selectivity at the Neuropeptide Y5 Receptor

open access: yesAngewandte Chemie, EarlyView.
Here, we present the first active structure of the neuropeptide Y5 receptor (NPY5R) in complex with its endogenous ligand NPY and the Gi1 protein. The cryo‐electron microscopy structure, validated by extensive mutagenesis studies, gives important insights into the molecular mechanisms underlying ligand binding and receptor activation.
Lisa Christin Peuker   +8 more
wiley   +2 more sources

On the Outer Independent Double Roman Domination Number [PDF]

open access: yesBulletin of the Iranian Mathematical Society, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Doost Ali Mojdeh   +3 more
openaire   +1 more source

Independent Double Roman Domination Stability in Graph

open access: yesEuropean Journal of Pure and Applied Mathematics
An independent double Roman dominating function (IDRD-function) on a graph $G$ is a function $f :V(G)\to \{0, 1, 2, 3\}$ having the property that (i) if $f(v) = 0$, then the vertex $v$ must have at least two neighbors assigned 2 under $f$ or one neighbor
Jamil J. Hamja   +4 more
semanticscholar   +1 more source

[k]-Roman Domination in Digraphs

open access: yes, 2023
Let D=(V(D),A(D)) be a finite, simple digraph and k a positive integer. A function f:V(D)→{0,1,2,…,k+1} is called a [k]-Roman dominating function (for short, [k]-RDF) if f(AN−[v])≥|AN−(v)|+k for any vertex v∈V(D), where AN&
Ruijuan Li, Xinhong Zhang, Xin Song
core   +1 more source

Outer independent double Roman domination in unicyclic and bicyclic graphs

open access: yesArs Comb.
An outer independent double Roman dominating function (OIDRDF) of a graph \( G \) is a function \( f:V(G)\rightarrow\{0,1,2,3\} \) satisfying the following conditions: (i) every vertex \( v \) with \( f(v)=0 \) is adjacent to a vertex assigned 3 or at ...
S. Nazari-Moghaddam   +2 more
semanticscholar   +1 more source

Protection of Lexicographic Product Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2022
In this paper, we study the weak Roman domination number and the secure domination number of lexicographic product graphs. In particular, we show that these two parameters coincide for almost all lexicographic product graphs. Furthermore, we obtain tight
Klein Douglas J.   +1 more
doaj   +1 more source

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